Do we know anything about what happens in the Seanchan Empire regarding damane after the events of the Last Battle? Do they give up collaring them?
Moghedian was collared after the battle itself so I assume they kept at it, in accordance to the Dragon's Peace though. i.e. no more Aes Sedai could be collared, but seems the Sharans were free game so not sure how that applied to the Aiel or windfinders. However a part of the agreement between Tuon and Egwene was any aes sedai who had been collared but wished to be returned would be and any who wished to be collared could be. We never got to see how any of that played out though so I guess it's up to our own interpretation.
I recall in one of the earlier books (the Fires of Heaven, "A Short Spear"); Rand & Avi accidentally travel to Seanchan before the return and meet angry military types (including damane) who enigmatically say "There is sedition in this district". Something tells me that unless Tuon or eventual heirs actively free the damane, there will always be enough "sedition" to make damane a valuable military asset.
So ... no. Per comments, in Avi's vision Tuon is thinking about freeing the damane, but unless there's a definitive imperial edict, it'll be a hard sell to the military commanders.